Proud to announce that my first PhD paper has now been accepted and is live on arXiv!! arxiv.org/abs/2603.24662 In this paper I provide the first analyses of JWST spectra of a sample of young, co-eval L dwarfs, focusing on the silicate absorption and whether there are any equator-to-pole variations.

Clouds with a silicate lining: Using JWST spectra to probe atmospheric diversity in young AB Dor L dwarfs

We present the first full JWST NIRSpec Prism and MIRI LRS 0.6 - 14 $μ$m (R ~ 100) spectra and analysis of five ~ 133 Myr L dwarf members of the AB Doradus moving group and one probable $\sim 500$ Myr ...

arxiv.org

TWO recently accepted papers on arxiv today from our group, led by PhD students @maddielam.bsky.social and @astrotoole.bsky.social. If you like brown dwarfs, variability, clouds, aurorae and/or magnetic spots there is something here for you! 👀 arxiv.org/abs/2603.24662 arxiv.org/abs/2603.24663

I've been helping to create a survey to better understand behaviours experienced by LGBTQIA+ individuals in astronomy in Europe! This is open to anyone in astronomy in Europe + UK! Please fill it out and share it around 🔭: groupes.renater.fr/limesurvey/i...

🔭 It's paper day! Today I'm sharing the latest in a series of papers looking at the weather on other worlds, in this case bringing you the weather report from a nearby T-dwarf, SIMP-0136. 🪐 🧵 to follow...

A very hungry planet! 🪐 What appears to be a ripple in space is actually a newborn planet, eating its way through its dusty cradle around a younger version of our Sun 🌞 Read more: https://www.eso.org/public/images/potw2534a/ 🔭 🧪 #exoplanets 📷 ESO/R. van Capelleveen et al.

Congrats Cian!!! Super hyped to see what comes out of it

Cian O'Toole@astrotoole.bsky.social · last yr.

I'm absolutely delighted to share that my Hubble Space Telescope proposal has been accepted! We will search for the first UV detection of an aurora outside the solar system on the brown dwarf 2M1047, using simultaneous observations from HST and the VLA. Stay tuned for some very exciting science! 🔭📡

Attended my first ever conference last month at #EASCork! Super inspiring to hear about what’s going on in exoplanets and brown dwarfs!